Results 61 to 70 of about 1,082 (143)

Absolute values of BMOA functions

open access: yesRevista Matemática Iberoamericana, 1999
The paper contains a complete characterization of the moduli of BMOA functions. These are described explicitly by a certain Muckenhoupt-type condition involving Poisson integrals. As a consequence, it is shown that an outer function with BMO modulus need not belong to BMOA. Some related results are obtained for the Bloch space.
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Compactness of composition operators on BMOA [PDF]

open access: yesProceedings of the American Mathematical Society, 1999
A function theoretic characterization is given of when a composition operator is compact on BMOA, the space of analytic functions on the unit disk having radial limits that are of bounded mean oscillation on the unit circle. When the symbol of the composition operator is univalent, compactness on BMOA is shown to be equivalent to compactness on the ...
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Multipliers of \(H^ p\) and BMOA

open access: yes, 1990
For functions \(f(z)=\sum^{\infty}_{0}a_ nz^ n\), \(g(z)=\sum^{\infty}_{0}b_ nz^ n\) analytic in the unit disk \({\mathbb{D}}\) write \(f*g(z)=\sum^{\infty}_{0}a_ nb_ nz^ n\) and \(M_ p(r,f)=(1/2\pi)\int^{2\pi}_{0}| f(re^{i\theta})^ p d\theta)^{1/p}\). The space \(H^ p\) is the set of analytic f with \(M_ p(r,f)=O(1)\) as \(r\to 1\).
Mateljević, M., Pavlovic, M.
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Bloch-to-BMOA compositions on complex balls [PDF]

open access: yesProceedings of the American Mathematical Society, 2012
Let \(\mathbb{B}_n\) denote the unit ball in \(\mathbb{C}^n\), \(H(\mathbb{B}_n)\) denote the holomorphic functions on \(\mathbb{B}_n\). For a map \(\varphi:\mathbb{B}_n\to \mathbb{B}_m\) the composition operator \(C_\varphi\) is defined on \(H(\mathbb{B}_n)\) by \(C_\varphi(f)=f\circ\varphi\). The Bloch space of functions \(\mathcal{B}(\mathbb{B}_n)\)
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Pointwise multipliers on the weighted BMOA space

open access: yesJournal of Physics: Conference Series, 2020
Abstract Let D = {z : |z| < 1} be the unit disk in the complex plane C, Φ :
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The characteristics of BMOA on Riemann surfaces [PDF]

open access: yesKodai Mathematical Journal, 1992
The author gives a John-Nirenberg type theorem for BMOA on open Riemann surfaces. Some equivalent descriptions of BMOA on Riemann surfaces were given. For compact bordered Riemann surfaces similar results were given in an earlier joint work [\textit{He Yuzan} and \textit{Zhao Ruhan}, Chin. Sci. Bull. 36, No. 20, 1677-1682 (1991; Zbl 0764.30036)].
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Strength development according with age and position: a 10-year study of 570 soccer players. [PDF]

open access: yesBMJ Open Sport Exerc Med, 2021
Scoz RD   +7 more
europepmc   +1 more source

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